Safety-razor.



F. A. FULLER.

SAFETY RAZOR.

APPLICATION FILED APR. 17. 1914.

mmm. Patented Mar, 27, 1917.

A TTOR/VEV opinion FRANZ FULLER, 015 NEWARK, NEW JERSEY.

SAFETY-RAZOR.

Specification of Letters Patent.

Patented Mar. 2'3, 191?.

Application filed April 17, 1914. Serial No. 832,407.

To all whom it may concern:

Be it known that I, FRANZ A. FULLER, a citizen of the United States,residing in the city of Newark, in the county of Essex and State of NewJersey, have invented certain new and useful Improvements in Safety-Razors, of which the following is a full, clear, and exact description,such as will enable others skilled in the art to which it pertains tomake, construct, and use the same, reference being had to theaccompanying drawings, and to numerals of reference marked thereon,forming a part of this specification.

- This invention relates to improvements in safety razors, and theobject is to provide a safety razor with a removable razor blade guard,so that when the guard is removed therefrom, the device is adapted forhoning and stropping the razor blade.

With this and further objects in view, as will in part hereinafter beset forth, and in part become obvious, the invention comprises certainconstructions, combinations and arrangements of parts as hereinafterdescribed and claimed.

In the accompanying drawings,

Figure 1 represents a side elevation of my improved device.

Fig. 2 represents a front elevation of the same, with the handle brokenaway.

Fig. 3 represents a similar view of the device, provided with a modifiedform of razor blade guard.

Fig. 4 represents a sectional under plan view taken on lines :vm of Fig.1, and looking in the direction indicated by th arrow.

Fig. 5 represents a perspective view of the razor blade guard removedfrom the device; and

Fig. 6 represents a side elevation of my improved device, partly insection, illustrating the strop in full lines, and showing the manner inwhich the device is to be used for honing the razor blade, in whichcase, the blade contacts with the honing or abrading rollers, and thestrop in dotted lines, illustrating the manner in which the device is tobe used for stropping the razor blade, in which case, the blade engageswith the strop.

Similar. numerals of reference refer to like parts throughout thespecification and drawings.

In the drawings, 1 represents the body or frame of my improved device,which body may be stamped from sheet metal or the like and afterwardbent into the desired shape as shown. Said body or frame comprises twoopposite side portions 2 and,3, parallel each to each, and connected bya lower curved central cross-piece or guide 4, to which a handle 5 issecured in any convenient or desired manner. The said side portions 2and 3 are adapted to lie at the opposite edges of a strop 6 with thecross piece or guide 4 beneath and the handle 5 depending therefrom inconvenient position to slide the device longitudinally of the strop.

In Fig. 6 of the drawings, I have shown the body or frame 1 furtherprovided with a central upper curved cross-piece or guide 7 connected tosaid side portions 2 and 3 in any convenient or desired manner. Theseguides 4 and 7 are so arranged with relation to the lower roller 14 andthe upper shaft 13 of the device, as to provide sufiicient space for theentrance of the end of the strop, and are further so arranged that ifthe strop is to be inserted in the device when the same" is to be usedfor stropping the blade, the end of the strop, after passing over theroller 8 as illustrated in dotted lines in Fig. 6 of the drawings, willpass between the roller 14 and the guide 4, and then up over the otherroller 8, and should it be desired to insert the strop for honing theblade, the end of the strop after passing under the roller 8 is passedbetween the roller 14 and the guide 7, and then down under the otherroller 8, as illustrated in full lines in Fig. 6 of the drawings.

J ournaled in the ends of the frame 1, are rollers 88, each consistingpreferably of stone or any other suitable honing or abrading material,rotatably mounted on a cylindrical rod or shaft 9 fixed at its ends tothe respective side portions 2 and 3 of the body or frame 1. These tworotatable honing and stropping rollers 8 are provided with a helicalgroove 10, or if desired, with a plurality of short helical grooves, andserve as rollers for honing the razor blade when the device is tobe'used for honing the blade, as illustrated in Fig. 6 of the drawings,and serve as strop carrying or guiding rollers when the device is to beused for stropping the blade, as illustrated in said View of thedrawings.

The rollers 88 are preferably spaced apart for approximately the Widthof the device, and disposed intermediate the width of the device, areupwardly projecting ears 11. Said ears 11 have upper and lower holesforming bearings for the pivoted ends of an upper shaft 13 and a lowerroller 14, both extending transversely of the frame 1. The upper shaft13 and the lower roller.14 are connected by means of pinions or gears 12and 15, shown in dotted lines, so that drawing the device along thestrop will tend to turn the said shaft 13, and when the direction ofsliding the device is reversed, the shaft 13 will be turned overaccording to the principles already well understood in the art.

The shaft 13 carries the blade holder 17, which holder may consist of apiece of sheet metal wrapped around the shaft 13 and secured thereto inany convenient or desired manner, so as to provide resilient clampingjaws 18 and 19 to receive the razor blade 20 between themselves, as hasbeen common in general heretofore.

The razor blade as shown, is preferably made of sheet steel, providedwith a substantially plane portion along one longitudinal edge, andhaving a longitudinal cutting edge on the side opposite said portion,the blade intermediate said portion and said cutting edge, comprising auniformly concave portion on which the cutting edge is formed, and lyingentirely on one side of the-central plane of the said first mentionedportion, and having an ofiset portion connecting said concaveportionwith said first mentioned portion. The ear or lug 11 in the frame 1 inits upper side, is provided with a recess 21, which recess when he bladeholder is in a vertical position, will correspond with the space betweenthe resilient clamping jaws 18 and 19 of the blade holder, so as toprovide a ready means for the insertion and removal of the blade 20 fromthe holder 17.

v The razor blade guard 22 is preferably made of sheet metal, stampedand formed from a single blank (see Fig. 5). To an extension formed onthe under side thereof, is secured in any convenient manner, a lockinglever 28, pivoted at 24, the free end 25 of said locking lever being soformed as to engage with the free end 26 of a springtongue 27, which issecured to the under side of the cross-piece 4 of the frame 1 by meansof screws 28, thus providing means by which the guard 22 is securelyclamped to the frame 1.

29 represent offset portions or guides, designed to have slidingengagement with the opposite side portions 2 and 3 of the body orframe 1. The blade guard 22 is constructed to grip the blade 20 at thefront corners, the sharpened edge of the blade resting upon the curvedportion of the guard, which is provided with the usual perforations 30,said curved portion being sufliciently in advance of the edge of theblade to afford the necessary protection against accidental cutting.

The upper and outer ends of the guard have upwardly extending stops 31for engagernent with the corners of the cutting edge of the blade 20 toprevent said cutting edge from projecting too far beyond the guard 22,to at all times maintain the out ting edge of the razor in the properand adjusted position, relative to the guard teeth.

32 represent pressed-out portions or stops on the under side of theguard plate to limit the movement of the pivoted locking lever 23.

In Fig. 3 of the drawings, I have shown a modified form of guard, inwhich the upper and front portions of the same, in which theperforations 30 are located, is cut away in such a manner as to exposethe roller 8, which in a measure serves as a guard.

The operation of the device is as follows:

When the device is to be used for shaving, the structure illustrated inFig. 1 is to be used, and when the device is to be used for honingpurposes, the guard 22 is removed, and the strop, shown in full lines,1s then passed under one of the rollers 8, at one end of the frame 1 andbetween the lower roller 14 and the guide 7. and then through and underthe other roller 8 of the device, as clearly indicated in Fig. 6 of thedrawings. The attached end of the strop, (not shown) is hooked over anysuitable support, while its opposite end, (likewise not shown) is heldin'one hand. The other hand grips the handle 5 of the device, andreciprocates said device back and forth along the strop, therebypermitting the blade to be engaged with the honing or abrading rollers88. When it is desired to use the device for stropping the razor, it isonly necessary to pass the strop over one of the rollers 8 at one end ofthe frame 1, and between the lower roller 14 and the guide 4, and thenout through and over the other end roller 8 of the device, as clearlyindicated in dotted lines in Fig. 6, then by reciprocating the devicealong the strop as above described, the blade will be brought intocontact with the strop instead of with the abrading rollers I am awarethat changes may be made in the several arrangements of the variousparts, as well as in the details of construction thereof, withoutdeparting from the scope of my present invention, hence I do memes?tions parallel each to each, and'connected by a lower centralcross-piece, a handle secured to said central cross-piece, a bladeholder pivoted on said frame directly above said central cross-piece, arazor blade guard detachably secured to the two opposite side portionsof said frame, a spring tongue secured to the under side of the centralcrosspiece of the frame and a locking lever secured to the under side ofsaid guard, the free end of said locking lever engaging with a springtongue for positively adjusting the blade relative to the guard.

2. A safety razor comprising a frame, said frame comprising two oppositeside portions parallel each to each, and connected by a lower centralcross-piece, a handle secured to said central cross-piece, a bladeholder pivoted on said frame directly above said central cross-piece, arazor blade guard detachably secured to the two opposite side portionsof said frame, means carried by said guard for positively adjusting theblade relative to the guard, said razor blade ard being further providedwith guides deslgned to have sliding engagement with the opposite sideportions of the frame for detachahly securing'the guard to said frame, as iring tongue secured to the under side of time central cross-piece ofthe said frame and a locking lever secured to the under side of saidguard for positively adjusting the blade relative to the guard.

3. A safety razor comprising a frame adapted to slide longitudinally ofa strop, said frame comprising two opposite side portions parallel eachto each, a blade holder pivoted on said frame with a line of pivotingtransverse to the strop, a roller pivoted below said blade holder on theframe for transmitting rotary movement to said blade ably securing theguard to said frame, a

spring tongue secured to the under side of the central cross-piece ofthe said frame and a locking lever secured to the under side of saidguard for positively adjusting the blade relative to the guard.

4:. A safety razor comprising a frame, said frame comprising twoopposite side portions parallel each to each, and connected by a lowercentral cross-piece, a handle secured to said central cross-piece, ablade holder pivoted on said frame directly above said centralcross-piece, said frame being further provided with a recess in one ofthe side portions thereof for the insertion and removal of the bladefrom the blade holder, a razor blade guard detachably secured to the twoopposite side portions of said frame, a spring tongue secured to theunder side of the central cross-piece of the frame and a locking leversecured to the under side of said guard, the free end of said lockinglever engaging with a spring tongue for positively adjusting the bladerelative to the guard.

This specification signed and witnessed this 15th day of April, 1914.

FRANZ A. FULLER.

